Seco 03272672 Milling Insert 218.19-100T-MD08 MP2501

Product Description

The SECO 03272672 is a single-sided, trigon-shaped solid carbide milling insert in the 218.19-100 series, manufactured to ANSI/ISO code 218.19-100T-MD08. It carries manufacturer grade MP2501 and is CVD-coated with a TiCN plus Al2O3 Duratomic coating for wear resistance in demanding cut conditions. The insert features a neutral rake, a T-Land cutting edge style, a 12-degree relief angle, and a 0.0315-inch corner radius. With a maximum depth of cut of 0.0290 inches and three cutting edges per insert, it is suited to high-productivity face and shoulder milling operations performed by machinists and CNC operators in metalworking shops.

This insert is designed for milling steel as its primary workpiece material, with secondary application suitability for stainless steel, cast iron, superalloys, and titanium. It fits within the R217.21 and R220.21-R100 cutter series. The MD08 chip breaker geometry supports controlled chip formation across these material groups. Fine-grain carbide substrate and CVD Duratomic coating work together to maintain edge integrity during interrupted cuts and at sustained feed rates on CNC machining centers and manual knee mills.

Key Features

• Solid carbide fine-grain substrate with CVD TiCN plus Al2O3 Duratomic coating for extended tool life
• Trigon (60-degree included angle) shape with T-Land cutting edge style for controlled entry and reduced chipping
• Three cutting edges per insert (single-sided) to maximize cost-per-edge value
• MD08 chip breaker optimized for steel, stainless steel, cast iron, superalloys, and titanium
• Neutral rake and 12-degree relief angle for stable cutting action across multiple workpiece materials
• Screw-held insert mounting for positive, repeatable seating in compatible toolholders

Compatibility

Designed for use in R217.21 and R220.21-R100 cutter series toolholders. Insert size code 100T with ANSI/ISO designation 218.19-100T-MD08. Compatible with applications involving steel (P), stainless steel (M), cast iron (K), and superalloys and titanium (S) workpiece material codes per ISO classification.

Installation Notes

Installation is performed by machinists or CNC tooling technicians. Before changing inserts, the machine spindle must be fully stopped, locked out, and the toolholder secured in a vise or fixture to prevent rotation. Use the appropriate Torx or hex key to seat the clamping screw; follow the toolholder manufacturer's torque specification for the screw size used. Inspect the insert pocket and seating surface for chips or debris before installing a new insert to ensure accurate positioning and prevent premature edge failure.